form_for remote true is not working in ruby on rails

Question

I want to create tasks by using ajax with loader. Here is my View -

<%= form_for(@task, :remote => "true") do |f| %>
<center><h3>Organize Your Tasks</h3></center>
<table class="table table-bordered table-condensed table-striped">
<tr>
<td> 
     <%= f.select :taskcategory, options_for_select(["Money/Career", "Relationship", "Safety", "Health Care", "God", "Hobbies", "Society"]), {}, {:multiple => false} %>
    </td>
    <td style="width:120px;">
   <%= f.text_field :taskname, :placeholder => "Task Name" %>
</td>
<td>
  <%= f.select :importance, options_for_select(["Highly Important", "Important", "Less Important"]), {}, {:multiple => false} %></center>           
    </td>   
<td  style="width:120px;">
       <%= f.text_field :startdate , :id => "from", :placeholder => "Start Date", :value => "#{Date.today.strftime("%d/%m/%Y") }" %>   
    </td>   
<td  style="width:120px;">
      <%= f.text_field :targetdate , :id => "to", :placeholder => "End Date", :disabled => "ture"%>   
     </td>
    <td>                     
     <%= f.submit "Create", class: "btn"%> 
    </td>                
   </tr>     
</table>  
<% end %>

And here is my controller -

def create
  @task= current_user.tasks.build(params[:task])   
  respond_to do |format|
    if @task.save 
      flash[:success] = "Task created!"
      format.html {redirect_to root_url }
      format.js { redirect_to}
    else         
      format.html { render 'static_pages/index'}
    end
  end
end

Here I write a code to show all tasks

<div class="tabbable" style="margin-left:-50px" >
   <ul class="nav nav-tabs span10" id="myTab" style="margin-left:50px">
     <li class="active"><a href="#tab1">All Tasks(<%=   current_user.tasks.where(:status => 'active').count %>)</a></li>
     <li ><a href="#tab2">Dreams(<%= current_user.tasks.where(:importance => 'Highly Important', :status => 'active').count %>)</a></li>
     <li ><a href="#tab3" >Today's Tasks(<%= current_user.tasks.where(:targetdate => Date.today.to_s, :status => 'active').count %>)</a></li>
     <li ><a href="#tab4" >Imp Tasks(<%= current_user.tasks.where(:importance => 'Important', :status => 'active').count %>)</a></li>
     <li id="fat-menu" class="dropdown aa">
     <a href="#" class="dropdown-toggle" data-toggle="dropdown">Others</a>
     <ul class="dropdown-menu">
    <li><a href="#tab5" >Postpone(<%= current_user.tasks.where(:status => 'postpone').count %>)</a></li>
    <li><a href="#tab6" >Satisfied(<%= current_user.tasks.where(:status => 'satisfied').count%>)</a></li>
    <li><a href="#tab7" >Unsatisfied(<%= current_user.tasks.where(:status => 'unsatisfied').count%>)</a></li>
    <li><a href="#tab8" >Closed(<%= current_user.tasks.where(:status => 'closed').count%>)</a></li>
     </ul>
  </li>
</ul>
 <div class="tab-content span10" >
  <div class="tab-pane active" id="tab1">    
<%= render 'shared/feed' %> 
  </div>
  <div class="tab-pane" id="tab2">
   <%= render 'shared/feed_dream' %> 
  </div>
  <div class="tab-pane" id="tab3">
     <%= render 'shared/feed_urgent' %> 
  </div>
  <div class="tab-pane" id="tab4">
     <%= render 'shared/feed_important' %> 
  </div>
  <div class="tab-pane" id="tab5">
     <%= render 'shared/feed_postpone' %> 
  </div>
  <div class="tab-pane" id="tab6">
    <%= render 'shared/feed_satisfied' %> 
  </div>
  <div class="tab-pane" id="tab7">
     <%= render 'shared/feed_unsatisfied' %> 
  </div>
  <div class="tab-pane" id="tab8">
    <%= render 'shared/feed_closed' %> 
  </div>
</div>

Here is my create.js.ejb ---

page.replace_html('index' , redirect_to root_url)

When i submit my task then it creates in database but page is not updated. When i again refresh the page then task is showing. I know the problem in create.js.ejb file. How can i show update tasks in my table??

Answer 1

page.replace_html('index' , redirect_to root_url) // this is invalid

"page.replace_html" no longer works in rails 3

In create.js.erb

alert("record created");
// or update div with id some_div_id
$("#some_div_id").html("<%= escape_javascript(render :partial => 'some_partial') %>");

Answer 2

First of all make sure that you have included jquery and jquery_ujs into your application.js file.

Its a bad habit to redirect from the view. Make it format.js { redirect_to root_url}

And use *.js.erb template instead of rjs template.

In create.js.erb you might do something like this

$("#some_div").append("some HTML content that is related to created record")

Hope this helps